Regulation of dynamo-electric machinery.



BEGULA H. GU TTINGER.

HUN 0? DYNAMO ELECTRIC MACHINERY. APPLIUATIOH FILED JAN. 16,1 909. I

Patent-vii Sapt. 19 1911.

UNITED STATES PATENT OFFICE.

HEINRICH G'UTTINGER, 0F BADEQ] SWITZERLAND, ASSIGNOB TO THE FIRM OFAKTIENGESELIJSCHAFT BROWN, BOVERI & CIE, 0F BADEN, SWITZERLAND.

Specification of Letters Patent.

Application filed January is, me. Serial No. 472,620.

To all whom it may concern:

Be it known that I, HEINRICH Gti'r'rmona,

engineer, a citizen of the Republic of Switzerland, residing} at ZumRosenheinn.

Bruggerstrasse, den, Switzerland, have invented certain new and usefulImprovements in and Relating to the Re ulatlon of Dynamo-ElectricMachinery an the Like; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference bein had to the accompanying drawings, an to letters orfigures of reference marked thereon, which form a art of thisspecification.

This invention relates to the automatic regulation of dynamo-electricmachinery and has for its object, to provide means for the automaticregulation of such machinerysuch term including direct current andalternating curlent systems, transformers, and other arrangements orapparatus in which current voltage or both is or are required toregulateor to be regulatedwihich means, in contradistinction to thedevices of this type in use hitherto permits'the regulation of suchmachiner by altering a resistance without the use 0 a special auxiliarypower or a ent such as for instance of a motor whic is necessary withthe Thur regulator and without the occurrenceof etrnnental spar-kin asis the case, for instance, with t e Tim 1 regulator.

The invention consists in a relay ism-angement which may be operated byalternating current or direct current adapted to move, under theinfluence of the currentor pressure to be regulated or of both. thepoint of a rolling sector thus rolling o the circumference of thissector on, contact buttons of the resistance, regulating the current orpressure of the machine, or both, which buttons are arran ed in a circlehaving a large radius. T e adjustment of this resistance is effectedwithout the occurrence of' sliding friction so that the direct orimmediate ad- 'ustment of the regulating resistance may e effected bymeans of the power developed in the relay with the utmost accuracy andreliability. Further the. regulating device forming the subject matter 0this invention has the great advantage over known devices that in thestate of equilibrium all parts of the system are at rest, consequentlyreducing the wear of the movable arts to a minimum. Any suitable meanssuc as spring gravity, electrical and the like may be used as controlsfor adjustin the relay.

The invent-ion a so consists in the arrangements hereinafter described.

Referring to the accompanyin partly sectional drawings: Figure 1 is arout elevation and Fi 2 a plan view of one form of regulating eviceaccordin to this invention. Figs. 3 and 4 show in rent elevation and InnView respectively a modified form suita le for use with alternatingcurrents.

In carrying the invention into eflect in the form illustrated in Figs. 1and 2 which is suitablefor use with direct currents, a moving coil 0suitably fastened to a ring 0' is mounted on a spindle a, together witha sprin c, which carries the point bearing d. A rol ing sector 6 ispressed by the spring 0 against the contacts j, which are stationarilymounted around the center of the s indle a. In addition a lever ismounted on t e shaft a, which in this form of the invention is shown asa disk h, which carries at the same time the spring 0.

In operation if for instance a direct current flow in the turning coil 0and a uniformly saturated magnetic field cut it after the manner ofWestons instrument, which current has such an intensity that'the developed torque counterbalances the torque pro need by the weight, 13,the coil will adust itself to a definite position. A slight increase-inthe tensity of current or terminal pressure will then result in aturning movement in say a clockwise direction while a decrease willresult in a turning movement in a counter-clockwise direction. If themov'in coil be connected across the leads of a shunt dynamo and sooperate according to voltage or pressure and if the resistance I, beplaced in the field circuit then as the rolling sector e is electrically'connected with the one end we of the resistance a rotation in onedirection will result in an increase in the terminal pressure whileadecrease of pressure will take place b rotation in the other directionintroduclng resistance in the field circuit for such a period until thetorques actin in opposite directitilllls on the moving coi 0 are equalto each ot er.

Patented Sept. 19,.1911.

In carrying the invention into effect in dust as durable as counterwoiht. In

of contacts and resistances connectmglthem,

plied by Way of exam is in an alternatin current system a dis 1),constructed 0 aluminium or the like is arranged for driving according toFcrraris principle by an alternating current electro-Inagnet g. Thewinding Ir of this magnet maybe taken as connected in the presentinstance to the terminals of an alternating current generator, while theresistance Z, may be situate in the main current circuit or in the shuntcurrent circuit of the exciting dynamo. The mode of action is similar inthis instance to that in the case with direct current referred toabove.-

In order to make the contacts of the resistance, which should berotected from possible, 1; sir surfaces are preferably silvered. 1

When using only one rolling sector the weight of the same should bebalanced by a lace of the latter and to counter alance t e unbalancedradially acting force of the spring a one of several such sectors maybearrang'ed symmetrically around the center. of the axis or shaft. The

weight a, may also if desired be substituted by suitable spring means.

Having now particularly described and ascertained the nature of the saidinvention and in what manner the same is to be performed, I declare thatwhat I claim is:

1. In an automatic electric regulator, a set an operating sector adaptedto r0 said contacts, a shaft an electricall cons trolled rotatablemember mounted t ereon and elastic means connected to said shaftandtransmitting the movement of saidrotatable membermo the point of.said sector.

2. In" automatic electric regulator, a

set of contacts and resistances connecting them, anJoperating sectoradapted to roll over.said--contacts, a shaft, an electrically controlledrotatable member mounted on said shaft and a sprin connected to saidshaft and transmittl v rotatable member to tie" oint of said, sector.

3. In an automatic ectric regulator, a set of contacts and resistancesconnecting them, an operating sector adapted to rol 1 over saidcontacts, 'a shaft, an electrically *over; said contacts, a has, anelectrically controlled rotatable member jmounted on and engaging t csaid bearing.

controlled rotatable member mounted on said shaft and a pointbearingconnected to saidshaft and ajlpoi'nt jonsaid s ctor ena ging saidbearingl t c TJIn an-automa=t" lgctric r eguletor 'a set of contacts,and;-;reststanc'es"connectmg :them', an operating sector-adapted toroll said shaft and a s rin connected to=said l1aft andprovide witapoint bearing, and a bearing oint fastened "to saidsector s Malaiseemovement of the shaft, a weight suspended from the lever set of contactsand resistances connecting them, an operating sector adapted to rollover said contacts, a shaft, an electrically controlled rotatable membermounted on said shaft and a sprin connected to said shaft and providedwit one member of a point bearin the other member of which is fastenedto t e point of said sector, the distance 'of said point bearing fromthe axis of the shaft being small compared to the radius of the sector.

6. In an automatic electric regulator, a setof contacts arran ed in anarc and resistances connectin t em, an operating sector adapted to rolover said contacts, said sector of reater curvature than the arc inwhich the contacts are arranged, a shaft, an' electrically controlledrotatable member mounted on saidshaft and a s ring connected to saidshaft and provide with one member of a point bearing the other member ofwhich is fastened tothe point of said sector.

7. In an automatic electric regulator, a set of contacts arran ed in anarc and resistances connecting t em, an operating sector adapted to rollover said contacts, said sector of greater curvature than the arc inwhich the contacts are arranged, a shaft, an electrically controlledrotatable member mounted on said shaft, a spring connected to sand shaftand provided with one member of a point bearin the other member of whichis fastened the oint of said sector, said spring urging tie sectoragainst 100 the contacts.

8. In an automatic electric regulator, a set of contacts and resistancesconnectmg them, an operating sector adapted to roll over said contacts,a shaft, an electrically 105 controlled rotatable member mounted on saidshaft, a weight to counterbalance said member against rotation, a springconnected to said shaft and provided with one member of a oint- 'bearingthe other member of -O which is fastened tojhc oint of said sector.

9. In an automatic e ectric-rcgulator, a set of contacts arranged in anarc and resista'nces connectin them, an operatingsvctor adapted to rolover said contacts, said 115 sector of greater curvature than the are inwhich the contacts are arranged, a'shaft, an electrically controlledrotatable member mounted on said shaf, a lever arm on the arm tocounterbalance said. rotatable membe:- and prcw'ent its rptation undernormal conditions, and asprin connected to said shaft and provided withone member of a point bearing the other member of which is fastened tothe point of said sector, said pring urging the sector against thecontacts.

10. In an automatic electric regulator, a

set of contacts arranged in arc and re- SJStflIlCBS connecting them, anoperating scotor adapted to roll over said contacts, said sector ofgreater curvature than the are in which the contacts are arranged, a,shaft, a disk on the shaft acting as a lever, a motor, a weight and aflexible suspension for i the weightconneoted to the disk to prevent therotation of the motor under normal con 1 ditions and a spring connectedto said shaft and provided with one member of a point bearing the othermember of which is fastoned to the point ofs iid sector, said springurging the sector algeinst the contacts.

In testimony thsit 'I claim the foregoing as my invention, I have signedmy name in 1.: presence of two s\.1bsci'ibing witnesses.

ERNST Fxscumr, JOSEPH SIMON.

